Cyber Resilience

Threat actor · all actors

Sea TurtleG1041 state

🇹🇷 TR

aka Sea Turtle, Teal Kurma, Marbled Dust, Cosmic Wolf, SILICON, UNC1326

Last updated: 2026-08-20

0attributed CVEs
40ATT&CK techniques
0.0IDF score (tooling uniqueness)
0exclusive CVEs
years active

About this actor

This blog post discusses the technical details of a state-sponsored attack manipulating DNS systems. While this incident is limited to targeting primarily national security organizations in the Middle East and North Africa, and we do not want to overstate the consequences of this specific campaign, we are concerned that the success of this operation will lead to actors more broadly attacking the global DNS system. DNS is a foundational technology supporting the Internet. Manipulating that system has the potential to undermine the trust users have on the internet. That trust and the stability of the DNS system as a whole drives the global economy. Responsible nations should avoid targeting this system, work together to establish an accepted global norm that this system and the organizations that control it are off-limits, and cooperate in pursuing those actors who act irresponsibly by targeting this system.

Source: MITRE ATT&CK

Names & naming systems

Each vendor coins its own name for the same actor. Where a name follows a known scheme we attribute it; the rest are listed honestly as unclassified.

MITRE ATT&CKG-number catalogue id

G1041

Microsoftweather-system names

Marbled Dust

CrowdStrikenation-animal names

Cosmic Wolf

MandiantUNC uncategorised cluster

UNC1326

Unclassifiedno scheme matched

Sea TurtleTeal KurmaSILICON

How we know this

Data origin
MITRE ATT&CK Imported from the MITRE ATT&CK STIX bundle as an intrusion-set object.
Techniques
MITRE ATT&CK STIX mappings — 40 ATT&CK techniques on file.
Named victims
None on file.

See how actor data is built for the full pipeline.

Activity timeline

No activity events recorded.

Profile

CVERiskCVSSEPSSPublishedProducts
No attributed CVEs.

Mitigating controls (NIST 800-53)

ControlTechniques coveredCoverage
SI-422 / 4055%
CM-619 / 4048%
CM-217 / 4042%
AC-315 / 4038%
AC-613 / 4032%
SI-313 / 4032%
SI-713 / 4032%
CA-712 / 4030%
CM-712 / 4030%
RA-512 / 4030%
SC-712 / 4030%
AC-411 / 4028%
AC-210 / 4025%
AC-59 / 4022%
IA-29 / 4022%

Co-occurring actors

None.

Similar actors

Similar TTPs

Same nation-state